Abstract:Photoluminescence (PL), Fourier-transform infrared (FI'IR), and deep-level transient spectroscopy (DLTS) measurements have been made on various samples of silicon-doped liquid-encapsulated Czochralski-grown GaAs. All the samples show prominent PL peaks at 1.443 and 1.325 eV together with their longitudinal optic (LO) phonon peaks. The PL peak at 1.443 eV has been reported in the literature as being due to either Ga,, or a boron-related defect. The FI'IR results show the presence of B, , at 540.3 and 517.0 cm-'… Show more
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